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gh-93475: Expose FICLONE and FICLONERANGE constants in fcntl (#93478)
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@ -50,6 +50,12 @@ descriptor.
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constants, which allow to duplicate a file descriptor, the latter setting
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``FD_CLOEXEC`` flag in addition.
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.. versionchanged:: 3.12
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On Linux >= 4.5, the :mod:`fcntl` module exposes the ``FICLONE`` and
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``FICLONERANGE`` constants, which allow to share some data of one file with
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another file by reflinking on some filesystems (e.g., btrfs, OCFS2, and
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XFS). This behavior is commonly referred to as "copy-on-write".
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The module defines the following functions:
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@ -0,0 +1,2 @@
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Expose ``FICLONE`` and ``FICLONERANGE`` constants in :mod:`fcntl`. Patch by
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Illia Volochii.
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@ -8,6 +8,9 @@
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#ifdef HAVE_SYS_FILE_H
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#include <sys/file.h>
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#endif
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#ifdef HAVE_LINUX_FS_H
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#include <linux/fs.h>
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#endif
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#include <sys/ioctl.h>
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#include <fcntl.h>
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@ -572,6 +575,12 @@ all_ins(PyObject* m)
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#ifdef F_GETPIPE_SZ
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if (PyModule_AddIntMacro(m, F_GETPIPE_SZ)) return -1;
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#endif
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#ifdef FICLONE
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if (PyModule_AddIntMacro(m, FICLONE)) return -1;
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#endif
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#ifdef FICLONERANGE
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if (PyModule_AddIntMacro(m, FICLONERANGE)) return -1;
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#endif
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/* OS X specifics */
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#ifdef F_FULLFSYNC
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3
configure
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vendored
3
configure
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@ -8847,7 +8847,8 @@ $as_echo "#define STDC_HEADERS 1" >>confdefs.h
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# checks for header files
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for ac_header in \
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alloca.h asm/types.h bluetooth.h conio.h crypt.h direct.h dlfcn.h endian.h errno.h fcntl.h grp.h \
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ieeefp.h io.h langinfo.h libintl.h libutil.h linux/auxvec.h sys/auxv.h linux/memfd.h linux/random.h linux/soundcard.h \
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ieeefp.h io.h langinfo.h libintl.h libutil.h linux/auxvec.h sys/auxv.h linux/fs.h linux/memfd.h \
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linux/random.h linux/soundcard.h \
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linux/tipc.h linux/wait.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
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sched.h setjmp.h shadow.h signal.h spawn.h stropts.h sys/audioio.h sys/bsdtty.h sys/devpoll.h \
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sys/endian.h sys/epoll.h sys/event.h sys/eventfd.h sys/file.h sys/ioctl.h sys/kern_control.h \
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@ -2504,7 +2504,8 @@ AC_DEFINE(STDC_HEADERS, 1, [Define to 1 if you have the ANSI C header files.])
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# checks for header files
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AC_CHECK_HEADERS([ \
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alloca.h asm/types.h bluetooth.h conio.h crypt.h direct.h dlfcn.h endian.h errno.h fcntl.h grp.h \
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ieeefp.h io.h langinfo.h libintl.h libutil.h linux/auxvec.h sys/auxv.h linux/memfd.h linux/random.h linux/soundcard.h \
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ieeefp.h io.h langinfo.h libintl.h libutil.h linux/auxvec.h sys/auxv.h linux/fs.h linux/memfd.h \
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linux/random.h linux/soundcard.h \
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linux/tipc.h linux/wait.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
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sched.h setjmp.h shadow.h signal.h spawn.h stropts.h sys/audioio.h sys/bsdtty.h sys/devpoll.h \
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sys/endian.h sys/epoll.h sys/event.h sys/eventfd.h sys/file.h sys/ioctl.h sys/kern_control.h \
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@ -685,6 +685,9 @@
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/* Define if compiling using Linux 4.1 or later. */
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#undef HAVE_LINUX_CAN_RAW_JOIN_FILTERS
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/* Define to 1 if you have the <linux/fs.h> header file. */
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#undef HAVE_LINUX_FS_H
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/* Define to 1 if you have the <linux/memfd.h> header file. */
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#undef HAVE_LINUX_MEMFD_H
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